package edu.sctu.practice.class02.liqiqi.practice02;

/**
 * Created by uw on 2015/10/15.
 */
public class Content {

    private double radius;
    public  static int numOfobjects;
    public  final double PI = 3.1415926;
    private double area;

    public Content(double radius){
        this.radius=radius;
        numOfobjects++;
    }

    public double strivesforarea(){
        area  = PI * radius * radius;
        return area;
    }
}
